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In a context of increased primary school enrollment rates, secondary education is appearing as the next big challenge for Latin American and East Asian countries. This report seeks to undertake a detailed diagnostic of secondary education in these two regions, understand some of the main constraints to the expansion and improvement of secondary education, and suggest policy options to address these constraints, with focus on policies that improve the mobilization and use of resources.

The Ubiquitous-Physics (U-Physics) app was upgraded to help students in learning inclined plane concepts. The new version of U-Physics allows students to see the experimental data not only in a graphical representation but also in a tabular representation. U-Physics provides a whiteboard function to support data explanations. The study investigated the differences between experimental students who use U-Physics (EG) and control students who do not use the app (CG) in terms of learning achievements. Additionally, we studied the free body diagram ability of students by giving them a test and analyzed its relationship to inquiry behaviors (interpreting graphs, applying formulas, and drawing conclusions) and learning achievements. Two 11th-grade classes (EG = 15 and CG = 32) participated in this quasi-experimental design. Our findings showed that the students who use U-Physics performed better than those who do not use the app in terms of learning achievements. Inquiry behaviors have a significant correlation with students’ learning achievements, and drawing conclusions is a predictor to affect students’ learning achievements. Additionally, most students agreed that U-Physics is beneficial for their physics learning. Thus, we strongly suggest teachers to use U-Physics and involve inquiry behaviors in physics laboratories to enhance students’ inquiry thinking and learning achievements while conducting physics experiments.

This study developed a mobile app called Ubiquitous-Physics (U-Physics), which helps students explore inclined plane phenomena in authentic contexts and consolidates their physics learning in everyday contexts. The study investigated inquiry behaviors such as interpreting graphs, applying formulas, drawing conclusions, and peer sharing, and how these influenced learning achievements. The app's effects on learning perceptions and motivation were also analyzed. The study was conducted at a vocational senior high school and two activities (indoors and outdoors/authentic contexts). The results show that the experimental group using U-Physics significantly outperformed the control group, who used traditional tools such as a stopwatch for the inclined plane experiment in terms of learning achievements. Analysis of the correlations among inquiry behaviors and learning achievement revealed that the number of posts in authentic contexts had the greatest influence on learning achievement, confirming the importance of applying physics concepts in authentic contexts. Additionally, most students reported positive perceptions of the U-Physics app and were highly motivated to use it for future learning. The findings indicate that using U-Physics in authentic contexts is very meaningful and can contribute to physics learning, particularly when using mobile devices with sensors to facilitate inquiry learning in authentic physics scenarios.

This paper introduces the Monstrous Conclusion, according to which, for any population, there is a better population consisting of just one individual (the Monster). The Monstrous Conclusion is deeply counterintuitive. I defend a version of Prioritarianism as a particularly promising population axiology that does not imply the Monstrous Conclusion. According to this version of Prioritarianism, which I call Asymptotic Prioritarianism, there is diminishing marginal moral importance of individual welfare that can get close to, but never quite reach, some upper limit. I argue that Asymptotic Prioritarianism faces a theoretical cost, that I call the Absolute Priority Principle. However, the Absolute Priority Principle is an extreme version of what I call the Trade-off Condition, an already noteworthy problem facing other (more widely endorsed) versions of Prioritarianism. I conclude that it is better for a theory to imply the Absolute Priority Principle and avoid the Monstrous Conclusion than to imply the Monstrous Conclusion and the Trade-off Condition. The potential for Asymptotic Prioritarianism is substantial.

The articles in this issue together articulate the varied ways in which inequality and urban education intersect and interact. Woven throughout is a common denominator that binds these particular investigations—the concept of race. Heretofore, scholarly analyses of race and educational inequality have reached heterogeneous conclusions: from race as a reified identity correlated with educational disparities, to urban education as an institution that promotes virulent ideologies, to racialized patterns of interaction that reproduce educational stratification. We draw upon these articles to synthesize these perspectives and articulate the relationship between urban education and race as an ongoing feedback loop: race (re)produces the phenomena of urban education, while urban education (re)forms race. The intertwining of these two reproduces both the dominant meanings of race and the hierarchical location of racial groups in the social order across five key domains: ideologies, institutions, interests, identities, and interactions.

This commentary considers policy implications of research in this volume and elsewhere, and we emphasize the benefits of policy approaches that move “upstream,” to the prevention of homelessness. Policies that address the structural causes of homelessness, described by numerous articles in this ANNALS volume, are the furthest upstream and may be the most important in eradicating homelessness, and policies aimed at prevention are next. We point out that effective prevention requires targeting those most at risk, and we call for creative use of data and better coordination with institutions and systems that may be able to identify the antecedents to homelessness. We note that currently, the homelessness shelter system is strained, so we argue for a radical rethinking of its role, with a shift of resources to efforts further upstream. The existing racial disparities in both pathways to and incidence of homelessness bring urgency to making more than marginal policy changes.

Arrhenius's impossibility theorems purport to demonstrate that no population axiology can satisfy each of a small number of intuitively compelling adequacy conditions. However, it has recently been pointed out that each theorem depends on a dubious assumption: Finite Fine-Grainedness. This assumption states that there exists a finite sequence of slight welfare differences between any two welfare levels. Denying Finite Fine-Grainedness makes room for a lexical population axiology which satisfies all of the compelling adequacy conditions in each theorem. Therefore, Arrhenius's theorems fail to prove that there is no satisfactory population axiology. In this paper, I argue that Arrhenius's theorems can be repurposed. Since all of our population-affecting actions have a non-zero probability of bringing about more than one distinct population, it is population prospect axiologies that are of practical relevance, and amended versions of Arrhenius's theorems demonstrate that there is no satisfactory population prospect axiology. These impossibility theorems do not depend on Finite Fine-Grainedness, so lexical views do not escape them.

In philosophical logic and proof theory, we often find multiple-conclusion systems that induce a conjunctive reading of premises and a disjunctive reading of conclusions. In mathematical logic, in contrast, we often find multiple-conclusion systems that induce a conjunctive reading of both premises and conclusions. This paper studies some technical and philosophical aspects of this latter approach to multiple-conclusion consequence. The takeaway is that, while the importance of disjunctive multiple conclusions is beyond doubt, conjunctive multiple conclusions also have philosophical interest. First, because there is some evidence that there are arguments with conjunctive multiple conclusions in natural language. Second, because conjunctive multiple conclusions are compatible with the reflexivity and transitivity of logical consequence, and this allows them to cohere better with some of our best accounts of what logical consequence is.

According to the person-affecting view, the ethics of welfare should be cashed out in terms of how the individuals are affected. While the narrow version fails to solve the non-identity problem, the wide version is subject to the repugnant conclusion. A middle view promises to do better – the Interpersonal Comparative View of Welfare (ICV). It modifies the narrow view by abstracting away from individuals’ identities to account for interpersonal gains and losses. The paper assesses ICV’s merits and flaws. ICV solves the non-identity problem, avoids the repugnant conclusion, and seems to accommodate the person-affecting intuition. But it cuts too many things along the way: ICV obstructs the advantage of the wide view to account for all future individuals’ welfare, abandons the intuitions that underlie the narrow view, and even violates its own presuppositions by turning out to be merely pseudo person-affecting.

This conclusion to the special issue highlights the role of scholars in advancing the public discussion about forced migration. As countries around the world are adopting increasing restrictions on the entry of refugees, academic research can help to dispel some of the myths and apprehensions regarding the risks that forced migration entails. While refugees may be linked to conflict and violence in limited circumstances, the research generally demonstrates that robust international cooperation to manage refugee settlements, provide adequate humanitarian assistance, and integrate refugees into host communities, among other policies, can help to mitigate potential risks. Directions for future research and analysis are also discussed. Forced migration scholars should endeavor to collect more individuallevel data; seek to understand factors that exacerbate or reduce security risks associated with cross-border militancy; conduct research on the long-term integration of refugees; and seek to understand the causes and consequences of resettlement and repatriation policies.